CA2436111A1 - Method for removing impurities from solvent extraction solutions - Google Patents

Method for removing impurities from solvent extraction solutions Download PDF

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Publication number
CA2436111A1
CA2436111A1 CA 2436111 CA2436111A CA2436111A1 CA 2436111 A1 CA2436111 A1 CA 2436111A1 CA 2436111 CA2436111 CA 2436111 CA 2436111 A CA2436111 A CA 2436111A CA 2436111 A1 CA2436111 A1 CA 2436111A1
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CA
Canada
Prior art keywords
amine
regenerating
loading capacity
metal loading
organic phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2436111
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French (fr)
Other versions
CA2436111C (en
Inventor
Jean-Jacques Robert Perraud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goro Nickel SA
Original Assignee
Goro Nickel SA
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Filing date
Publication date
Application filed by Goro Nickel SA filed Critical Goro Nickel SA
Publication of CA2436111A1 publication Critical patent/CA2436111A1/en
Application granted granted Critical
Publication of CA2436111C publication Critical patent/CA2436111C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/28—Amines
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/04—Obtaining nickel or cobalt by wet processes
    • C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/28—Amines
    • C22B3/282—Aliphatic amines
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/28—Amines
    • C22B3/284—Aromatic amines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

A method for regenerating an amine extractant used for recovery of metals involves contacting a liquid organic phase containing an amine complexed with one or more metals with an aqueous solution substantially free of chloride ions to strip the one or more metals from the organic phase. The stripped organic phase is then contacted with a solution of hydrochloric acid to regenerate the amine extractant which can then be recycled in a production process.

Claims (33)

1. A process for regenerating metal loading capacity of an amine comprising:
providing a liquid organic phase containing an amine complexed with a metal that loads on the amine as a chloride complex;
contacting said liquid organic phase with an aqueous solution substantially free of chloride ions to strip said metal; and contacting the stripped organic phase with a solution containing chloride ions to hydrochlorinate the amine.
2. A process for regenerating the metal loading capacity of an amine according to claim 1 wherein said metal is selected from the group consisting of Zn and Fe
3. A process for regenerating the metal loading capacity of an amine according to claim 1 wherein said amine has the formula R1 R2 R3 N wherein R1, R2 and R3 may be the same or different and are selected from the group consisting of aliphatic, aryl, aromatic chain and hydrogen atom(s).
4. A process for regenerating the metal loading capacity of an amine according to claim 3 wherein said amine is a tertiary amine selected from the group consisting of triisobutylamine, trihexylamine, triisooctylamine, triisononylamine and triphenylamine.
5. A process for regenerating the metal loading capacity of an amine according to claim 1 wherein said liquid organic phase comprises an aliphatic diluent.
6. A process for regenerating the metal loading capacity of an amine according to claim 5 wherein said aliphatic diluent is a paraffin solvent.
7. A process for regenerating the metal loading capacity of an amine according to claim 6 wherein said paraffin solvent comprises isoparaffins.
8. A process for regenerating the metal loading capacity of an amine according to claim 1 wherein said liquid organic phase comprises an alcohol.
9. A process for regenerating the metal loading capacity of an amine according to claim 8 wherein the alcohol is an alkanol.
10. A process for regenerating the metal loading capacity of an amine according to claim 9 wherein the alkanol is isodecanol.
11. A process for regenerating the metal loading capacity of an amine according to claim 1 wherein said aqueous solution substantially free of chloride ions contains an ion selected from the group consisting of sulfate, nitrate and phosphate.
12. A process for regenerating the metal loading capacity of an amine according to claim 11 wherein the concentration of sulfate, nitrate or phosphate ranges from about 0.01 to about 300 grams per liter.
13. A process for regenerating the metal loading capacity of an amine according to claim 1 wherein said solution containing chloride ions is a hydrochloric acid solution.
14. A process for regenerating the metal loading capacity of an amine according to claim 13 wherein said hydrochloric acid solution ranges from about 0.5N to about 6N.
15. A process for regenerating the metal loading capacity of an amine according to claim 1 further comprising returning the hydrochlorinated amine to a solvent extraction circuit.
16. A process for regenerating the metal loading capacity of an amine according to claim 1 wherein the ratio of liquid organic phase to the aqueous solution (O/A ratio) is about 1.
17. A process for regenerating the metal loading capacity of an amine according to claim 1 wherein the temperature ranges from about 10°C to about 80°C.
18. A method for removing Zn from an amine chloride complex comprising:
providing a liquid organic phase containing an amine chloride complexed with Zn; and contacting said liquid organic phase with an aqueous solution substantially free of chloride ions to strip the Zn.
19. A method for removing Zn from an amine chloride complex according to claim 18 wherein said amine has the formula R1 R2 R3 N wherein R1, R2 and R3 may be the same or different and are selected from the group consisting of aliphatic, aryl, aromatic chain and hydrogen atom(s).
20. A method for removing Zn from an amine chloride complex according to claim 19 wherein said amine is a tertiary amine selected from the group consisting of triisobutylamine, trihexylamine, triisooctylamine, triisononylamine and triphenylamine.
21. A method for removing Zn from an amine chloride complex according to claim 18 wherein said liquid organic phase comprises an aliphatic diluent.
22. A process for removing Zn from an amine chloride complex according to claim 21 wherein said aliphatic diluent is a paraffin solvent.
23. A method for removing Zn from an amine chloride complex according to claim 22 wherein said paraffin solvent comprises isoparaffins.
24. A method for removing Zn from an amine chloride complex according to claim 18 wherein said liquid organic phase comprises an alcohol.
25. A method for removing Zn from an amine chloride complex according to claim 24 wherein the alcohol is an alkanol.
26. A method for removing Zn from an amine chloride complex according to claim 25 wherein the alkanol is isodecanol.
27. A method for removing Zn from an amine chloride complex according to claim 18 wherein said aqueous solution substantially free of chloride ions contains an ion selected from the group consisting of sulfate, nitrate and phosphate.
28. A process for removing Zn from an amine chloride complex according to claim 27 wherein the concentration of sulfate, nitrate or phosphate ranges from about 0.01 to about 300 grams per liter.
29. A method for removing Zn from an amine chloride complex according to claim 18 wherein the ratio of liquid organic phase to the aqueous solution (O/A ratio) is about 1.
30. A method for removing Zn from an amine chloride complex according to claim 18 wherein the temperature ranges from about 10°C to about 80°C.
31. A method for removing Zn from an amine chloride complex according to claim 18 wherein the liquid organic phase also contains an amine chloride complexed with Fe.
32. A method for removing Zn from an amine chloride complex according to claim 18 wherein the method is included in a process for extracting Ni or Co from an aqueous solution.
33. A method for removing Zn from an amine chloride complex according to claim 32 wherein the aqueous solution is a leach solution.
CA 2436111 2002-07-16 2003-07-14 Method for removing impurities from solvent extraction solutions Expired - Fee Related CA2436111C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/195,969 2002-07-16
US10/195,969 US6951960B2 (en) 2002-07-16 2002-07-16 Method for removing impurities from solvent extraction solutions

Publications (2)

Publication Number Publication Date
CA2436111A1 true CA2436111A1 (en) 2004-01-16
CA2436111C CA2436111C (en) 2010-02-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2436111 Expired - Fee Related CA2436111C (en) 2002-07-16 2003-07-14 Method for removing impurities from solvent extraction solutions

Country Status (5)

Country Link
US (1) US6951960B2 (en)
JP (1) JP3844752B2 (en)
AU (1) AU2003213298B2 (en)
CA (1) CA2436111C (en)
FR (1) FR2842535B1 (en)

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JP5125371B2 (en) * 2007-10-02 2013-01-23 住友金属鉱山株式会社 Method for scrubbing amine-based extractant
JP5338186B2 (en) * 2008-08-07 2013-11-13 住友金属鉱山株式会社 Method for scrubbing amine-based extractant after back extraction
JP5375631B2 (en) * 2009-02-02 2013-12-25 住友金属鉱山株式会社 Method for removing metal elements from organic phase
CN102603025B (en) * 2012-03-31 2013-07-31 中国中化股份有限公司 Method for processing wastewater produced in reactive dye production by utilizing complexing extraction technology
US9347111B2 (en) 2012-11-06 2016-05-24 Lixivia, Inc. Making mineral salts from various sources
US10266912B2 (en) 2012-11-07 2019-04-23 Lixivia, Inc. Processed slag and methods for producing same
US9695490B2 (en) 2012-11-07 2017-07-04 Lixivia, Inc. Refining agents for alkaline earth production
US9499881B2 (en) 2012-12-04 2016-11-22 Lixivia, Inc. Refining methods and agents for rare earth production
US9738950B2 (en) 2013-11-06 2017-08-22 Lixivia, Inc. Systems and methods for alkaline earth production
US11078557B2 (en) 2013-11-06 2021-08-03 Lixivia, Inc. Systems and methods for alkaline earth production
CN106536413A (en) 2014-04-28 2017-03-22 理科思维亚公司 Methods for producing alkaline earth carbonates
WO2019232149A1 (en) 2018-05-30 2019-12-05 Lixivia, Inc. Selective extraction of metals from complex inorganic sources
CN113308603B (en) * 2021-05-26 2022-08-26 广西银亿新材料有限公司 Treatment method of interphase dirt in nickel-cobalt metallurgy P204 extraction system

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Also Published As

Publication number Publication date
FR2842535A1 (en) 2004-01-23
US20040014589A1 (en) 2004-01-22
CA2436111C (en) 2010-02-16
JP3844752B2 (en) 2006-11-15
AU2003213298B2 (en) 2005-10-20
US6951960B2 (en) 2005-10-04
JP2004107791A (en) 2004-04-08
FR2842535B1 (en) 2006-12-22
AU2003213298A1 (en) 2004-02-05

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